Icom IC-R9500 Instruction Manual - Page 105

Preparation, Voice squelch control function

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SCANS 8 ■ Preparation • Channels For programmed scan: Program scan edge frequencies into scan edge memory channels PxA and PxB. For ∂F scan: Set the ∂F span (∂F scan range) in the scan screen. For memory scan: Program 2 or more memory channels except scan edge memory channels. For select memory scan: Designate 2 or more memory channels as select memory channels. To designate the channel as a select memory channel, choose a memory channel, then push [F-3•SELECT] in the scan screen (memory mode) or in the memory list screen. • Scan resume ON/OFF You can select the scan to resume or cancel when a signal is detected. Scan resume ON/OFF must be set before activating a scan. See p. 8-17 for ON/OFF setting and scan resume condition details. • Scan speed Scan speed can be adjusted by [SPEED] controller. See p. 8-18 for details. • Squelch condition SCAN STARTS WITH PROGRAMMED SCAN MEMORY SCAN SQUELCH OPEN The scan continues until it is stopped manually, and does not pause even if it detects signals. Scan pauses on each channel when the scan resume is ON; not applicable when OFF. Scan stops when a signal is detected. SQUELCH CLOSED If you set 'SCAN RESUME' to 'DELAY,' the scan pauses according to [DELAY] control when detecting a signal, then resumes. When a signal disappears while scan is paused, scan resumes 2-20 sec. later. ■ Voice squelch control function This function is useful when you don't want unmodulated signals pausing or cancelling a scan. When the voice squelch control function is activated, the receiver checks received signals for voice components. If a receiver signal includes voice components, and the tone of the voice components changes within 1 sec., scan pauses (or stops). If the received signal includes no voice components or the tone of the voice components does not change within 1 sec., scan resumes. [VSC] ➥ While a phone mode (FM, WFM, SSB, AM) is selected, push [VSC] to switch the VSC (Voice Squelch Control) function ON and OFF. • " VSC " appears when the function is activated. • The VSC function activates for any scan. • The VSC function resumes the scan on unmodu- lated signals, regardless of whether the scan resume condition is set to ON or OFF. 8-3

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8-3
8
SCANS
■
Preparation
• Channels
For programmed scan:
Program scan edge frequencies into scan edge mem-
ory channels PxA and PxB.
For
∂
F scan:
Set the
∂
F span (
∂
F scan range) in the scan screen.
For memory scan:
Program 2 or more memory channels except scan
edge memory channels.
For select memory scan:
Designate 2 or more memory channels as select mem-
ory channels. To designate the channel as a select
memory channel, choose a memory channel, then
push [F-3•SELECT] in the scan screen (memory
mode) or in the memory list screen.
• Scan resume ON/OFF
You can select the scan to resume or cancel when a
signal is detected. Scan resume ON/OFF must be set
before activating a scan. See p. 8-17 for ON/OFF set-
ting and scan resume condition details.
• Scan speed
Scan speed can be adjusted by [SPEED] controller.
See p. 8-18 for details.
• Squelch condition
SQUELCH
CLOSED
SQUELCH
OPEN
Scan stops when a signal is detected.
If you set ‘SCAN RESUME’ to ‘DELAY,’ the
scan pauses according to [DELAY] control
when detecting a signal, then resumes.
When a signal disappears while scan is
paused, scan resumes 2–20 sec. later.
The scan continues
until it is stopped
manually, and does
not pause even if it
detects signals.
Scan
pauses
on
each channel when
the scan resume is
ON; not applicable
when OFF.
SCAN
PROGRAMMED
STARTS
SCAN
MEMORY SCAN
WITH
■
Voice squelch control function
This function is useful when you don’t want unmodu-
lated signals pausing or cancelling a scan. When the
voice squelch control function is activated, the receiver
checks received signals for voice components.
If a receiver signal includes voice components, and the
tone of the voice components changes within 1 sec.,
scan pauses (or stops). If the received signal includes
no voice components or the tone of the voice compo-
nents does not change within 1 sec., scan resumes.
➥
While a phone mode (FM, WFM, SSB, AM) is se-
lected, push [VSC] to switch the VSC (Voice
Squelch Control) function ON and OFF.
•
“
”
appears when the function is activated.
• The VSC function activates for any scan.
• The VSC function resumes the scan on unmodu-
lated signals, regardless of whether the scan re-
sume condition is set to ON or OFF.
VSC
[VSC]